Air conditioner



FIG. 1 is a front perspective view of the front, right, and top sides of an air conditioner of our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a reference exploded perspective view in a state where a panel is opened.

The broken lines shown represent unclaimed subject matter of the air conditioner and form no part of the claimed design. 

CLAIM The ornamental design for an air conditioner, as shown and described. 